rdfns.com

RDF Nameserver

Usage

Two forms of DNS queries are supported:

$P@$S.ns.rdfns.com

$P.$S.ns.rdfns.com

where $P and $S are url-encoded

and will produce SPARQL like:

SELECT ?o
FROM <$S>
WHERE { <$S> <$P> ?o }

and serve results via DNS TXT record.

'http://' in URIs are unnecessary/understood as implied. In addition, you can use any of the prefixes listed below.

Prefixes

PREFIX rdf:  <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX dc:   <http://purl.org/dc/terms/>
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX sioc: <http://rdfs.org/sioc/ns#>

Examples

On Linux

$ dig txt +short foaf:name@www.w3.org/People/Berners-Lee/card#i.ns.rdfns.com
"Timothy Berners-Lee"

On Windows

C:\>nslookup -type=txt foaf:name@presbrey.mit.edu/foaf#presbrey.ns.rdfns.com
Server:  UnKnown
Address:  192.168.18.5

Non-authoritative answer:
foaf:name@presbrey.mit.edu/foaf#presbrey.ns.rdfns.com   text =

        "Joe Presbrey"

ns.rdfns.com    nameserver = rdfns.com
rdfns.com       internet address = 18.181.1.220